| 000 | 004280000a22001690004500 | ||
|---|---|---|---|
| 650 | 1 | 4 |
_9145258 _aEDUCACION |
| 650 | 1 | 4 |
_9151984 _aINVESTIGACION |
| 593 | _a16-9-1994 | ||
| 596 | _aS | ||
| 245 | 1 | 0 | _aANALES DE LA UNIVERSIDAD CENTRAL |
| 260 | _bUniversidad Central del Ecuador | ||
| 310 | _aAnu. | ||
| 362 | 1 | _a19- | |
| 590 |
_bUniversidad Central del Ecuador, Quito, Ecuador _cQuito _gEcuador |
||
| 942 | _cCR | ||
| 999 |
_c129008 _d129008 |
||